[Xen-changelog] [xen-unstable] pv-on-hvm drivers: build fixes for Linux 2.6.27+

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1227525080 0
# Node ID 0b8c6c91c5a408345e6ed650fb9f19e4fa9809b9
# Parent  cd45b5c9561250b999476227dbc7f7ede377d3d4
pv-on-hvm drivers: build fixes for Linux 2.6.27+

Make the drivers build properly in a 2.6.27 environment as well as
against a kernel with pv-ops Xen configured on (in the latter case
more work would be needed to also make the drivers work, as there's a
large number of duplicate exports).

Portions from Charles Arnold <carnold@xxxxxxxxxx>.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 unmodified_drivers/linux-2.6/balloon/Kbuild                 |    5 ++---
 unmodified_drivers/linux-2.6/mkbuildtree                    |    1 +
 unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c  |    4 ++++
 unmodified_drivers/linux-2.6/platform-pci/platform-compat.c |    4 ++++
 4 files changed, 11 insertions(+), 3 deletions(-)

diff -r cd45b5c95612 -r 0b8c6c91c5a4 unmodified_drivers/linux-2.6/balloon/Kbuild
--- a/unmodified_drivers/linux-2.6/balloon/Kbuild       Mon Nov 24 11:06:16 
2008 +0000
+++ b/unmodified_drivers/linux-2.6/balloon/Kbuild       Mon Nov 24 11:11:20 
2008 +0000
@@ -4,6 +4,5 @@ obj-m  = xen-balloon.o
 
 EXTRA_CFLAGS += -I$(M)/platform-pci
 
-xen-balloon-objs =
-xen-balloon-objs += balloon.o
-xen-balloon-objs += sysfs.o
+xen-balloon-y := balloon.o sysfs.o
+xen-balloon-$(CONFIG_XEN_SCRUB_PAGES) += scrub.o
diff -r cd45b5c95612 -r 0b8c6c91c5a4 unmodified_drivers/linux-2.6/mkbuildtree
--- a/unmodified_drivers/linux-2.6/mkbuildtree  Mon Nov 24 11:06:16 2008 +0000
+++ b/unmodified_drivers/linux-2.6/mkbuildtree  Mon Nov 24 11:11:20 2008 +0000
@@ -53,6 +53,7 @@ i[34567]86|x86_64)
         ln -sf ${XL}/include/asm-x86/mach-xen/asm/synch_bitops*.h include/asm
         ln -sf ${XL}/include/asm-x86/mach-xen/asm/maddr*.h include/asm
         ln -sf ${XL}/include/asm-x86/mach-xen/asm/gnttab_dma.h include/asm
+        ln -sf ${XL}/arch/x86/lib/scrub.c balloon
     else
         if [ $uname = x86_64 ]; then
             mkdir -p include/asm-i386
diff -r cd45b5c95612 -r 0b8c6c91c5a4 
unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c
--- a/unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c        Mon Nov 
24 11:06:16 2008 +0000
+++ b/unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c        Mon Nov 
24 11:11:20 2008 +0000
@@ -34,7 +34,11 @@ static void ap_suspend(void *_info)
        atomic_dec(&info->nr_spinning);
 }
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
 #define initiate_ap_suspend(i) smp_call_function(ap_suspend, i, 0, 0)
+#else
+#define initiate_ap_suspend(i) smp_call_function(ap_suspend, i, 0)
+#endif
 
 #else /* !defined(CONFIG_SMP) */
 
diff -r cd45b5c95612 -r 0b8c6c91c5a4 
unmodified_drivers/linux-2.6/platform-pci/platform-compat.c
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c       Mon Nov 
24 11:06:16 2008 +0000
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c       Mon Nov 
24 11:11:20 2008 +0000
@@ -14,7 +14,11 @@ EXPORT_SYMBOL(system_state);
 
 void ctrl_alt_del(void)
 {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
        kill_proc(1, SIGINT, 1); /* interrupt init */
+#else
+       kill_cad_pid(SIGINT, 1);
+#endif
 }
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8)

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